[YARN-10641] Refactor the max app related update, and fix maxApplications update error when add new queues.

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: capacity scheduler
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Qi Zhu
• Reporter: Qi Zhu
• Created: 20/Feb/21 07:38
• Updated: 12/Feb/24 01:26
• Resolved: 18/Mar/21 12:44

Description

When refactor the update logic in YARN-10504 .

The update max applications based abs/cap is wrong, this should be fixed, because the max applications is key part to limit applications in CS.

For example: 

When adding a dynamic queue, the other children's max app of parent queue are not updated correctly:

 

The new added queue's max app will updated correctly: